Fireproof metal window.



No. 811,072.. PTBNTED JAN. 30, 1906. R. C. LIEB.

FIREPROOF METAL WINDOW.

APPLIOATION HLBD SEPT-18. 1905.

4 SHEETS-SHEET l.

@XH monaco No. 311,072. PATENTBD JAN. 30, 190e.

R. C. LIEB. PIREPROOF METAL WINDOW.

APPLICATION FILED SEPT. 18, 1905.

4 SHEETS-SHEET 2` 622% weones No. 811,072. y PATENTED JAN. 30, 1906. R. C. LIEB.

FIREPROOP METALl WINDOW.

APPLIGATION FILED SEPT. 18, 1905.

4; SHEETS-SHEET 3.

92 j; 1l l H) mk* i e ig@ ff i l: /c/ 1 :2) l. LM i 2p wh/wonen No. 811,072. v PATBNTED JAN. 30, 1906. R. 0. LIBB. PIREPROOF METAL WINDOW.

APPLICATION FILED SEPT-18, 1905.

4 SHEETS-SHEET 4.

itncamzo rr rra'rn lROBERT C. L'lEB, OF CHATTANOOGA, TENNESSEE, ASSIGNOR T0 JUIAIN E. ANNlS, OF UHATTANGOGA, TENNESSEE.

FIIWEPWF illlEW-Mi.. WUNDUIW..

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed September 18, 1905. Serial No. 279.988.

T0 all whom it may concern:

Be it known that l, ROBERT C. Linn, a citizen of the United States of America, and a resident of Chattanooga., county of Hamilton, State of Tennessee, have invented certain new and .useful improvements in Fireproof Metal ll'indows, of which the following is a full and clear specification, reference being had to the accompanying drawings, in which0 Figure 1 is an elevation of the inner side of a window constructed according to my invention; Fig. 2, a vertical longitudinal section on the line 2 of Fig. 1; Fig. 3, a section on the line 3 of Fig. 1, showing the movable edge wall E of the sash in engagement with the casing; Fig. 4f, a similar view showing said end wall shifted back into the sash-frame out of engagement with the casing to permit the sash to be removed from the casing; Fig. 5, a section on the line 5A of Fig. 1; Fig. 6, a detailed section hereinafter described; Fig. 7, a vertical longitudinal section through the lower right-hand corner of the lower sash, showing the position| of the movable edge wall when the sash is down; Fig. 8, a similar View showing the position `of the edge wall when the sash is raised; Fig. 9, a detailed view showing the movable edge wall or friction bearing-strip E of the lower sash locked in its outer position; Fig. 10, a similar View showing the friction strip or wall of the lower sash shifted inward out of engagement with f the frame; Fig. 11, a vertical section of the sill, showing the slide-covered opening .for introducing and removing the weights; Fig.,

12, a horizontal section on the line 1Q of Fig.

11; Figs. 13'and 14, detailed sections of the ribs for clamping the edges of the panes; and Figs 15 and 16,.views similar to Figs. 9 and 1'0, showing the devices arranged for use on the upper sash.

ril`he objects of this invention are to render the window absolutely fireproof; to permit the sash to be readily removed from the casing without the employment of removable guide-strips; to permit broken panes to be readily replaced by whole ones; to automatically tighten the sashes in their guideways by the simple act of closing them, thereby rendering them stormproof and preventing rattling, and to permit the sash-weights to be readily attached to their chains after the window is constructed, as more fully hereinafter set forth.

',lo the accomplishment of these objects and such others as may hereinafter appear the invention consists of the parts and combination of parts hereinafter fully described, and particularly pointed out in the appended claims, reference being had to the accompanying drawings, forming a part of this speciiication, in which the same reference characters designate like parts throughout the several views.

Referring to the drawings annexed by reference characters, the letter A. designates the window-frame as awhole, which is construted entirely of sheet metal, being provided with longitudinal depressions (t, whose sides are inclined for the reception of the iianges of the sash. Extending longitudinallythrough the hollow frame is aI rigid partition (t2, whose edges are rigidly attached to the opposite walls of the hollow frame and which is preferably made of heavier metal than the 4frame proper, thereby dividing the frame into two weight-compartments and serving to stiften the frame. The outer wall a' ofthe frame is preferably made of a separate piece fianged along its edges to engage the edges of the sheet forming the main part of the frame and also at the point where the stiifening-wall n.2 is attached to it. '.lhese flanges 'or ribs serve to rigidly attach the outer wall to the other walls and also to add rigidity to the frame. The sash B, including the glass supportingribsC, is also constructed of sheet metal. The ribs C are composed of the hollow inner strips c, the hollow outer strips c', provided with longitudinal flanges c2, the connectingbolts c5, and the strip c, carrying the nutsc. The Hanges c2 extend into a longitudinal slot in the outer wall of the inner strip c. The strip or plate o3 lies within the outer strip C and bears against the inner wall of said strip, and the screwbolts o extend through the inner strips and between the Hanges c2 and are screwed through the nuts c, thereby serving to clamp the inner strips removably against the edges of the panes, permitting the panes s ft, suitably supported within the hollow frame and having vertical depressions corresponding with the depressions@ in which the sashi'langes Work. This slide is held against the inner wall of the frame by the vertical edge of the partition a? and is capable of being slid up and down to permit the sash-weights to be inserted and removed at will. Y

The upright bar of each sash is constructed of sheet metal and made hollow, being provided with groovesb for the reception of the edges of the glass panes, which panes ar'e preferably provided with embedded wire of a suitable mesh to render the' Window reproof. The uprights at the left-hand side oi' the sash are provided with flanges 3, which fit and work in the groovesa in the frame, these flanges being inclined toward each otherto frictionally engage the inclined walls of the grooves a. The upright at the right-hand side of each of the sashes is provided with flanges e, similar to the flanges 3, but which are carried by a strip e', which practically constitutes the edge wall of the sash-bar and is adapted to be moved inward and outward with respect to the Window-frame upright, so that the flanges e may be projected into the grooves a of the frame or may be withdrawn into the sash-bar. When the iianges are fully projected, the strip or Walle' bears at its edges against the vertical flanges b4 oi" the sash-bar. The longitudinal edges of the strip e are bent inward to form flanges 62,' whichare pivotally connected by links F to the respective front and back walls of the sash-bar, these links serving to support the movable wall in its movements to and from the frame.

vligidly attached to the lower end of the movable strip e of the lower sash is a bolt J, provided at its lower end with a head or iiange j; This bolt normally tends to descend below the lower edge of the sash, the supportinglinks F being inclined outwardly and downwardly, so that the weight ofthe strip causes it to normally drop. The right-hand edge wall of theupper sash is constructed in the same manner, except as hereinafter set forth. It will be observed, therefore, that when the lower sash is closed down the bolt J will strike against the casing and force the iianges e outward into tight engagement with the walls of in the front wall of the sash-bar and adapted einer/a to engage ina slot 7c in the free end of the locking-lever K, which lever is pivotedto the inner wall of the sash-bar, preferablyby the `its movement is arrested and in which position the flanges e will be in loose engagement i with the grooves in the frame.

To permit the strips E to recede far enough into thesash-bars to enable the sashes to be removed from the frame, as shown in Fig. 4, itis simply necessary to spring the lockinglever K olf the end ofthe pin H, and thereby permit the4 pin H to drop down to the bottom of the arcuate slot this slot being just long enough to bring the iianges e yWithin the outer edge of the sash-bar. 0n the upper sash the devices for supporting and locking the guidestrip E are reversed-that is, the links F ineline downwardly and inwardly, the bolt J is attached to the upper end of the strip and is adapted to project above the upper end of the sash when the sash is lowered` the lockingleverK depends, and the slot b curves kupwardly and inwardly. With this reversed arrangement of the parts when the sash is lowered the weight of the sash bearing against the window-frame will cause the bearing-strip E to move upward and back far enough to project the bolt .l above the sash a short distance, so that when the sash is closed the top of the window-frame will force the bolt downward and bind the guide-flanges against the frame. This upward-and-backward movement of the strip F need be so slight the usual looseness of the sash in the frame will allow suicient play between shoulders and theA frame to permit a suiicient movement of the strip when the sash is open.

The meeting-rails of the sash are provided with iianges w, which engage over each other, as shown in Fig. 2, toclose the narrow space between the meeting-rails. i The weight-chains a run over the usual pulleys a4 and are attached to the sash by means of brackets D,

made of sheet metal and bolted to the respective inner sides of the front and back walls of the sash. The outer ends of these brackets work through vertical slots e3 in the flangecarrying strips and serve to assist in guiding thesame in its to-and-fro movements. The use of these brackets D for chain connections is rendered necessary by reason of the imv possibility of attaching the chains to thev movable strips. I have shown these brackets D upon both sides of the sash; but it is evident that they need only be employed at the sides vcarrying the movable strips, as at the side roo i carrying stationary guide-flanges the chains may be connected directly to the sash-bar in the usual manner.

lt will be observed that the projecting end of the bolt J is provided with a broad flat head in order to prevent holes or dents being made in the window-frame.

lt will be apparent to those skilled in the art that various mechanical embodiments of the invention are possible, and l therefore do not wish to be limited to the exact arrangement and construction shown.

' W hat l claim, and desire to secure by Letters Patent, is-

1. In combination with a frame member and a sash member, of a guide carried by one of the members and working in a groove in the other member, means for supporting the guide so that it will be capable of free normal movement toward the grooved member, means whereby this movement is restricted, whereby when the sash member is open itshall have a free sliding action in the framemember, and means whereby the guide may be positively forced against the grooved member when the sash is closed.

2. lin com bination with a window-frame and a sash working therein, of a guidestrip carried by the sash and engaging a groove inthe frame, means for supportingthis guide-strip in such manner that it will have a free nor'- mal movement whenthe sash is open, where-v by the sash may be freely restricted in the frame, means for limiting said movement of the guide-strip, and means whereby the guidestrip may be forced against the frame to lock Y low section Vslotted alongits outer side for the p reception of said anges, and connecting screwbolts passing through the inner section andV between the flanges and into the outer section. 4E. Arib for a window-sash consisting of an outer hollow section -inclosing a nut-carrying strip and provided with longitudinal flanges,

an inner hollow section engaging over said anges, and screw-bolts passing through the `inner section and between the Hanges and screwed into said nuts, for the purpose set forth.

slidable sash working in grooves therein, one of the edge walls of the sash being movable to and from the frame, pivotal links supporting said movable wall so that it shall have a free movement to and from the frame, means for restricting this movement, whereby the sash may slide freely in the frame without becoming disengaged therefrom, and means for releasing the movable wall so that it may be drawn back into the sash-frame to permit the sash to ,be removed from the window-frame.

7. ln combination with a window-frame, of a sash adapted to slide therein and carrying a movable edge wall, means for supporting this edge wall so that it shall'have a free normal play to and from the frame while the sash is open, means for projecting this movable wall toward the frame to lock the sash against movement in the frame, and means Wliereby the movable wall is limited in its movement and may be released for withdrawal back into the sash, said means consisting of' a pin at- -tached to the movable wall and projecting through a slot in the adjacent wall of the sash, and a movable locking-arm carried by the sash and having a slotted end in engagement with said pin, for the purposes set forth.

8. lin combination with a window-frame, a sash working and guided therein, and means for tightening the sash against rattling and a device for actuating said means by the` act of closing the sash.

9Min combination with a window -franie provided with grooves a sash provided with project the flanges tightly against'the frame 1 olo to lock the sash against rattling and ingress of air. f

10. ln combination with a vertical windowframe, a sash vertically guided therein and carrying in one of its rails a gravitating strip carrying Hanges adapted when projected beV yond the edge of the sash to engage the window-frame, and a depending part adapted by the closing down of the sash to project said flanges and tighten thesash against rattling.

11. ln combination witha frame member, a sash member sliding therein, a guide carried by one of the members and working in a groove in the other member, and a device for projecting the guide member upon the casing of the sash member.

12. lin combination, a window-frame, a sash slidable therein a guide carried by the sash and adapted to engage the window-frame this guide being movable to and from the windowframe, and a device connected to the guide and projecting beyond the end of the sash whereby when the sash is closed the guide IIO member will be forced tightly against the Window-frame. v

13. lin combination, a window-frame, asash.,

a guide-carrying strip inclosed in the sashbar and movably supported therein, a device whereby the guide carrying strip may be locked in its projected position, or permitted to recede into the sash-bar, and means for automatically tightening the guide against the window-frame when the sash is closed.

14. In combination with awindow-frame, a sash Working in grooves therein, one of the edge walls of the sash being movable to and from the window-frame, means for actuating the movable edgewall for the purpose Set forth, a bracket attached to a stationary part of the sash and projecting through an opening in said movable wall, lweight-chains connected I5 to the sash, one of the chains being connected to the projecting end of said bracket.

In testimony whereof VI hereunto affix my signature, in the presenceof two witnesses,this 1st day of September, 1905.

, ROBERT C. LIEB.

Witnesses:

H. H. ADKINS, A.. W. LAWSON. 

